无级变速汽车动力传动系统控制策略研究  

A control strategy of dynamical transmission system for CVT car

作　　者：周美兰[1] 王旭东[1] 周永勤[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150040

出　　处：《哈尔滨工业大学学报》2009年第3期217-220,共4页Journal of Harbin Institute of Technology

基　　金：教育部科学技术研究重点基金资助项目(208037);黑龙江省自然科学基金资助项目(E200626)

摘　　要：针对汽车行驶工况复杂多变,且其传动系统输入输出具有强耦合的特点,传统的控制算法很难满足要求,为此提出了油门——速比协调控制的综合模糊控制策略,设计了油门自组织模糊控制器和速比参数自调整模糊控制器,并对典型运行工况进行了仿真和分析,仿真结果表明综合模糊控制器与常规PD控制器相比前者具有良好的控制效果,通过整车道路试验进一步验证了所建模型的正确性,所提出的控制算法是可行和有效的,解决了动态过程中无级变速汽车动力性和经济性相协调的问题.Because of the random variable vehicle running situation and the strong coupling between the output and input of CVT system, the conventional control arithmetic is difficult to meet the request, so a throttle-ratio harmony integrated fuzzy control strategy is proposed. A oil self-organizing fuzzy controller and a ratio parameter self-adjusting fuzzy controller are designed. The typical operation situations of a car are simulated and analyzed. The results indicate that the integrated fuzzy controller has better control effect compared with the con- ventional PD controller. The road tests validate that the model established is correct, and the control arithmetic is feasible and effective. The harmonious problem of power and fuel economy performance for a car with CVT system is solved in dynamic process.

关 键 词：无级变速 传动系统 控制策略 仿真 道路试验 

分 类 号：U463.2[机械工程—车辆工程]